welcome to bbc news. i'm mike embley. our top stories: president trump is escorted from a white house briefing after security shoot an armed suspect outside the building. there was an actual shooting, and, uh... somebody‘s and taken to the hospital. protests on the streets of beirut, as the entire lebanese government steps down after last week's explosion. in belarus, clashes continue between police and protesters angry at sunday's disputed presidential poll. and new research suggests so much ice has melted in antarctica since the mid—1990s, it could fill the grand canyon.

the white house has been placed on lockdown after us secret service agents shot an armed suspect. president trump was in mid—sentence in a news conference when he was approached by a secret service agent, and abruptly escorted from the podium. this is what happened. it looks like they are just about going to be topping records stop sir... excuse me? mr president? minutes later, the president returned to the pressroom to say this. so, thank you very much. sorry for that.

there was a shooting outside of the white house, and it seems to be very well under control. i would like to thank the secret service for doing their always quick and very effective work, but there was an actual shooting and somebody‘s been taken to the hospital. i don't know the condition of the person. seems that the person was shot by secret service. our north america correspondent david willis has the latest details on the shooting. the secret service has confirmed what they call an officer—involved shooting at the corner of 17th street and pennsylvania avenue. that is the eisenhower executive building, which is next door to the white house. quite a dramatic scene where the president, literally midsentence, when he was approached by a secret service officer and escorted from the podium. a reporter who was nearby

quoted the secret service agent as saying, in his words, "step outside, sir, we are going to have to step outside." now, the president wasn't taken to the underground bunker that exists at the white house, as indeed he was briefly at the height of those quite violent demonstrations in lafayette park near the white house at the height of the black lives matter demonstrations. he was taken to the oval office where he spent eight minutes, and then was told he could go back and resume the press conference, which he did. a wide—ranging press conference lasting about an hour thereafter, but it is highly unusual for this sort of thing to unfold right in front of the television cameras. this was a televised press briefing and the president led away, as i said, midsentence from that briefing. just help us with the geography here, how close did all this come to the president and we know anything more the actual incident?

it seems to have happened outside the walls of the white house, and according to the president himself, mike, this was a suspect who was shot by the secret service and taken to hospital. the president said he thought that the suspect was armed and he paid tribute to the vigilance of law enforcement, but a fox news reporter who was quite nearby at the time reported hearing two shots in rapid succession. now, all we know from the secret service themselves as i mentioned was that there was an officer—involved shooting. it does appear, even though there is a large presence still of law enforcement in that area, that the incident now has been resolved. more on that as soon as we have it, of course. the entire lebanese government has stood down following last tuesday's catastrophic explosion in beirut. the prime minister said it was the result of endemic

corruption which is "bigger than the state" itself. angry protests have continued at the government's handling of the crisis, as the country faces economic collapse and food shortages. our middle east correspondent, quentin sommerville is in beirut. some lebanesejoke some lebanese joke that they cannot tell the difference between when they have a government and they do not have a government, the state is so absent from people's lives here. but protesters were celebrating tonight. they see this is the beginning of a long process. they want the speaker of the parliament to go, and they want to be president to leave also. my report contains images some viewers might find disturbing. inch by inch, lebanon is falling apart. they knew their government was finished but still, they want more. even among the tear gas, these protesters can almost smell the government's downfall, but they've brought down governments before and there's been little change here. a reshuffling of the same old faces at the top isn't going to solve

lebanon's crisis. when the end came, there were cheers. and riot police. the prime minister gave his resignation to the president but his government remains until a new one can be found. the state is out in force in a shattered capital, carrying guns, though, not brooms. the lebanese are famous for their determination, but people here are sick of being left to fend for themselves. nobody else but the youth is going to help here. as you see, you can see some people from the government here and theyjust sit and do nothing. it's not fixing. we do a revolution, it doesn't help. we become more aggressive, it won't help either, so what else can we do other than clean at the moment? some bonds in beirut remain unbroken. this man lived in this

beirut flat for 70 years. just two blocks from the port. he and his wife were here during the explosion. this is our kitchen. most of the doors and windows are gone. is it time to leave, i ask? no, no, no, no, no. i stay with the tent here. gemmayzeh is a tight neighbourhood. a dozen people died on this one corner, and everybody here knows exactly where their neighbours were when the blast hit. but some are in no position to help. their wounds are too raw. romy zakhour lauret was in her car on the highway by the port. she and her husband filmed the fire before the explosion. when we arrived to the

hospital, it was like a movie. i had more chance than others because i saw that people on the road, people lost their eyes. today, she's having plastic surgery. drjoe baroud is offering his services to the wounded for free. it's my god telling me that if you can at least offer some kind of your expertise to help the people because if i'm going to go and work on the streets in five months and see people with bad scars on theirface, i'm going to feel directly responsible for it. fireworks explode. and tonight, tear gas and fireworks as lebanon slips further into the void. this disaster brought the lebanese people together but it's also tearing their country apart. the lebanese people want to

live in a country where their life savings are not wiped out bya life savings are not wiped out by a financial and economic crisis, where theirjobs, their education and their healthcare does not depend on sectarian and political patronage. here in beirut they want to live in a city where there is 24—hour electricity, clean water, where the traffic lights work and whether rubbish gets collected. none of that happens. but most of all, they want answers for what happened here. who was responsible for this disaster? by responsible for this disaster? by government after government ignored warnings, saying it was a bad idea to keep many thousands of tons of high explosive chemicals right in the heart of the city. —— why government after the government. but the lebanese do not expect they will get a nswe i’s not expect they will get a nswers to not expect they will get answers to those questions, because they have no faith in their institutions, and they realise that change happens here very, very slowly. that was quentin sommerville in beirut for us. agnes chow is the latest leading pro—democracy campaigner to be detained in hong kong under the new national security law. it follows the arrest earlier

of the prominent activist and media tycoonjimmy lai, who was detained over allegations of collusion with foreign powers. in total, 11 people were arrested on monday. i've been speaking to the hong kong based writer and lawyer antony dapiran. i asked him what he made of these developments. well, this really is continuing, this ongoing crackdown, but most shocking of the events yesterday was this really direct attack on hong kong's free press with the arrest ofjimmy lai and a large police raid on the offices of apple daily, his newspaper. and do you expect the people to be held for some time or do you think this is in some way a warning to others? well, under the new national security law, suspects can be held without bail so it's highly likelyjimmy lai, agnes chow and the others arrested yesterday will be held without bail until their cases come to trial, which could be some months away, and i think there is no sign that this ongoing crackdown is going to stop, especially in the context of wider ongoing tensions

with the us and china and hong kong right in the middle of that. and do you expect china just to press ahead without testing the water in some way, seeing if there is meaningful international reaction? well, we really haven't seen any backing from china at all, notwithstanding consistent strong international pressure on the issue of hong kong. every week seems to bring new moves by the international community including of course the most recent sanctions from the us, but that does not seem to have dissuaded china at all with the latest arrests, the sign that this seems to be continuing. i don't think there is any sense they are going to back off. do we know anything about how the people arrested are being treated, because the chinese authorities are pretty rough with people in tibet and xinjiang. we do hope and expect that here in hong kong, people will be receiving treatment in accordance with international standards of human rights.

they are being held by the hong kong police, we understand they have not been handed over to the mainland authorities or taken across the border but that possibility is there for more serious cases, but we expect they do have access to their lawyers, and they are being treated in the appropriate way, but it's unlikely they are going to be given bail or singled out anytime soon. further to the future, how do you expect it to develop? we know that several democracy activists have left the country, do you think many people will or will a lot of people behave as so many do on mainland china, that they have political opinions and certainly not voicing. that certainly would be a very sad future for hong kong. we really are in transition. people are trying to understand what the parameters of the new environment are, many people will take that option to leave, others will stay and try to fight on, as brave journalists did yesterday and today, continuing to live stream the parade on the police headquarters and putting out the addition today

is that they will be testing the limits and seeing what they can make of life in the new hong kong. you talk about the new limits. the new national security law is very broad, isn't it? yes, indeed, it is very broadly drafted, deliberately so, to enable the authorities to target any person they fight to be an irritant and that indeed is what they've done so farforjimmy lai and agnes chow and i'm sure we will see others to come as they make use of this tool in their toolbox. thank you. that was anthony daparin there, a writer and lawyer based in hong kong. he was speaking about the rest ofjimmy lai, the media taken. the national security advisor in the us has just officially said the us is"

deeply troubled" by the rest of the media tycoon. more on that, of course, when we have more on it. stay with us on bbc news. still to come, more wrangling over relief aid in the us. we report from new hampshire on the debate over how much and who should be offered help. the big crowds became bigger as the time of the funeral approached. as the lines of fans became longer, the police prepared for a huge job of crowd control. idi amin, uganda's brutal former dictator, has died at the age of 80. he's been buried in saudi arabia, where he lived in exile since being overthrown in 1979. 2 billion people around

the world have seen the last total eclipse of the sun to take place in this millennium. it began itsjourney off the coast of canada, ending three hours later when the sun set over the bay of bengal. this is bbc news — the latest headlines: president trump has been escorted from a white house briefing — after security shot an armed suspect, outside the building. protests on the streets of beirut as the entire lebanese government steps down in the wake of last week's catastrophic explosion. the world has reached a disturbing new milestone in the number of coronavirus cases. according tojohns hopkins university, their aggregated tally has

become the main reference for monitoring the disease, the global number of covid—i9 cases has reached 20 million. the total number of global coronavirus deaths stands at 733,103. the united states has suffered the most deaths at 163,331, while there have been 101,000 in brazil, 52,000 in mexico, 46,611 in the uk and more than 114,000 in india. one of the challenges of pandemic and lock down is helping those affected economically. in states with a have been few covert cases and the economy has largely reopened, there is debate over who should be offered help and how much. win, win! a rare sight in this virtual election season. this is amazing. a politician on the campaign trail. good to meet

you. me too. that's me, perfect. cookie messner is a republican challenger proceed to new hampshire, a state that donald trump lost by a whisker in 2016 and where his endorsement still carries cloud. i am proud and honoured to have received resident trump's endorsement, it is a good thing, i don't view it as a liability, iview it a very good thing and i will tell you that the polls have started to earn some 110w and that the polls have started to earn some now and 90 days in politics is an eternity. joe biden enjoys an overall lead in new hampshire but resident trump's support among republicans remains above 80%, even as some have questioned his response to the pandemic. it's been inconsistent sometimes, it's been overreaching sometimes in some ways so how he manages now for the next two months, going into

the next two months, going into the general election cycle in august, after labour day and beyond,is august, after labour day and beyond, is really going to make it big difference for voters. do you know how you're going to vote ? do you know how you're going to vote? yes, i'm going to vote for the president. new hampshire has so far escaped the worst of the pandemic. that's why many republicans here support the president's focus on the economy. but despite record unemployment, staff shortages are a problem here. at first, the health concerns were the problem. the second problem was that a lot of my employees could make more money staying at home than what i pay money staying at home than what i pay them. no—one is replying to help wanted ads, we cannot get seasonal staff. this insight is where we keep all out insight is where we keep all our tanks. new hampshire hotels and our tanks. new hampshire hotels a nd restau ra nts our tanks. new hampshire hotels and restaurants depend on seasonal workers even when there isn't a pandemic. in

here, we have a 3.5 pound one and it would normally have been eaten by now. coronavirus isn't closing down the lobster trap. the owner can't get workers locally and foreign students normally can't travel. belonging it and doing the stuff and giving up the money, even the pp loans have been great for a business, a lot of businesses but eventually, someone had to pay the back and it's unfortunate is going to be people in future, kids that aren't even able to vote what 110w. aren't even able to vote what now. billy cuccio supports the relief offered by the president's order. he says rates are lower and the payroll tax cuts may allow workers to pocket more money when they get back to work. jane o'brien, bbc news, new hampshire. let's get some of the day's other news. police are limiting access to downtown chicago, after a night of violence and looting. there will also be a ‘heavy police presence' until further

notice. videos from the weekend showed hundreds of people raiding stores and confronting police after an altercation involving a suspect with a gun. at least 100 people have been arrested. at least one person has been killed, several injured in an explosion in baltimore. three houses were virtually flattened, in what the fire deparment is calling a ‘major gas explosion‘. the local gas and electric company has cut supplies to the area as a precaution, but says the cause has not yet been confirmed. thousands of students have taken part in an anti—government demonstration in thailand. in the biggest protest so far they again called for the prime minister to resign. prayut chanocha first seized power in a coup in 2014. more rallies are planned for wednesday, a national holiday in thailand. police in belarus have clashed with protestors for a second night after sunday‘s disputed election victory for president alexander lu kashenko. police say one demonstrator

died, when a bomb he was carrying went off. the opposition has rejected the election result and demanded a recount. "long live belarus," the crowd chants. they came out to protest against what they claim is a rigged vote. after 26 years of president lukashenko‘s rule, these people want to see changes in their country. such things in what is often called europe‘s last dictatorship would have been unthinkable a few months ago. but the regime here doesn‘t tolerate any dissent. there is a heavy police presence in minsk tonight. officers are detaining people at random, often quite violently. protesters are saying this is a scare tactic to keep people off the streets. but it seems that these heavy—handed tactics are not stopping the protests. people are still gathering in the streets despite the crackdown.

translation: my son is 26 years old. they arrested him just because i took a picture of a police car. they should have taken me. i‘m not leaving until they bring my son back. on a visit to an agricultural facility today, mr lukashenko blamed the protesters are stoking the violence. translation: they wanted to seize government buildings in some locations. this is what i‘ve said before, if some do not believe me, now they will. they want to start unrest here but i warned that there would be no revolution here. massive crowds gathered outside polling stations on the election day, hoping that their votes would bring an end to mr lukashenko‘s rule. many said the country has stagnated under the many years of his presidency. today, the opposition leaders went to the election commission to lodge a complaint. they are calling on president lukashenko to admit his defeat in the election.

officially, lu kashenko has won in the elections but we know, and people on the streets and in factories and in the whole of belarus, they know that he doesn‘t win this election. and now it‘s probably the most important moment in the history of modern belarus. the question now is, will the people be able to keep up the momentum and bring real change? the ice shelves in antarctica have melted to such an extent that since the mid—‘90s, they‘ve produced enough water to fill the grand canyon. a study released today has put it all down to higher temperatures in the ocean and warned of the consequences of climate change and increasing melting of the ice. our science and environment correspondent victoria gill has more. ice shelf seems a very humble term for the huge masses of floating

ice surrounding antarctica. and to study these vast frozen platforms, scientists had to zoom right out into space. using satellites to make precision measurements of the thickness of the ice shelf showed that in 25 years it lost enough mass to fill the grand canyon with water. the ice shelves that we see melting in this study are not going to raise to sea level in themselves because they are actually already sitting in the water. they are already floating. the sea level rise comes when those ice shelves reduce the restraint that they exert on the rest of the antarctic ice sheet, which then flows faster into the ocean, causing sea level rise. the effects of all this cold, fresh water entering the deep sea around antarctica are likely to be felt far beyond the polar south. the ocean plays a major

role in just controlling the climate around the world. adding a lot of cold fresh water to the ocean kind of changes the way in which inversion can transport heat, and that can change global climate and maybe potentially change rainfall patterns around the world. is that what scientists mean when they describe antarctica as the world‘s thermostat? that what happens to that ice and in that ocean is shifting weather patterns all around the world ? yeah, exactly. with many of the world‘s biggest cities by the coast, modelling future sea—level rise accurately is crucial. this study reveals just how much of that accuracy depends on understanding what is happening to the ice at the end of the world. victoria gill, bbc news. that menus the south, the might house was in security lockdown when president was escorted from the white house was briefing. he later returned to

speak to reporters. hello. the heatwave will continue for a few more days for many of us. we had temperatures on monday again of 35 celsius, the fourth consecutive day where temperatures were above 3a celsius. this was the picture in west sussex, lots of sunshine there, but we‘ve also already seen lots of heavy showers and thunderstorms. and tuesday brings us a similar day, hot again with the chance of those thundery downpours. we‘ve got very warm air with us at the moment, as there is across much of central and western europe. but bubbling up in the afternoon, we are set to see those torrential downpours. in fact, we start off tuesday morning already with some really heavy showers, particularly across the northern half of the uk. a hot, humid start to the day, especially further south. there will be a good deal of sunshine in store for tuesday, but especially during the afternoon,

we‘ll see more of those showers popping up. they could be heavy and thundery with some hail and squally winds with some of those downpours. but as is the nature with these sort of showers, they will be hit—and—miss and there will be long spells of hot sunshine. in the south—east, we‘re likely to see 3a or 35 celsius once again. it‘s a little bit fresher for scotland, northern ireland and the south west of england, typically the low to mid—20s here. now, through tuesday evening and overnight into wednesday, most of the heavy showers and thunderstorms die away for a time. there could be quite a bit of mist and murk as we‘ve got quite humid airaround. to start off wednesday, a little less humid across the far north of scotland, but for most of us, we are in for the high teens, possibly 20 degrees once again to start the day. so, wednesday a similar day, hot sunshine and scattered showers and thunderstorms as well. it‘s parts of northern england, wales, central and southern england that are at most risk of catching those thunderstorms through the day on wednesday. fewer for scotland and for northern ireland, but hot once again, with temperatures up to about 35 celsius

in the south—east, the mid to high 20s further towards the north and the west. and then heading through wednesday night into thursday, we‘ll start to draw in this area of low pressure, and it will bring a change into thursday. that‘s going to be drawing in some fresher air and also further scattered heavy showers and thunderstorms, too. it‘ll be driest across parts of scotland, northern ireland and northern england, typically the low 20s here. still, we could see 30 celsius down towards the south—east, but not quite as hot as the next couple of days. so, the heat continues, thundery downpours are likely and then things turn a little fresher as we head towards the end of the week. bye for now.

this is bbc news. the headlines: the white house has been placed on lockdown after us secret service agents shot an armed man outside. president trump was suddenly escorted from a white house press briefing by an agent, but returned minutes later, and told reporters a person had been shot and taken to hospital. the president said he did not think the white house fence had been breached. protests on the streets of beirut are continuing, even though the entire lebanese government has now stepped down. in an angry televised address, the prime minister blamed last week‘s catastrophic explosion and the country‘s economic problems on a corrupt political establishment. police in belarus say a demonstrator has died in the protests following sunday‘s disputed presidential poll. they say an explosive device went off in the man‘s hands as he tried to throw it. security services believe they have prevented an attempt on the life of the main

opposition candidate.